Optical nonlinearities of excitons in monolayer MoS2

Abstract

We calculate linear and nonlinear optical susceptibilities arising from the excitonic states of mono- layer MoS2 for in-plane light polarizations, using second-quantized bound and unbound exciton operators. Optical selection rules are critical for obtaining the susceptibilities. We derive the valley-chirality rule for the second harmonic generation in monolayer MoS2, and find that the third- harmonic process is efficient only for linearly polarized input light while the third-order two photon process (optical Kerr effect) is efficient for circularly polarized light using a higher order exciton state. The absence of linear absorption due to the band gap and the unusually strong two-photon third-order nonlinearity make the monolayer MoS2 excitonic structure a promising resource for coherent nonlinear photonics.

12 pages, 11 figures

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Cited by in corpus (12)

• Nonlinear optical selection rules of excitons in monolayer transition metal dichalcogenides
• Coherent Control of Two-Dimensional Excitons
• Nonlinear optics in 2D materials: from classical to quantum
• Intraband divergences in third order optical response of 2D systems
• Adiabatic Fock state generation scheme using Kerr nonlinearity
• Laser Annealing for Radiatively Broadened MoSe2 grown by Chemical Vapor Deposition
• Calculation of the nonlinear response functions of intra-exciton transitions in two-dimensional transition metal dichalcogenides
• Expeditious computation of nonlinear optical properties of arbitrary order with native electronic interactions in the time domain
• Pump-triple sum-frequency-probe spectroscopy of transition metal dichalcogenides
• Dephasing of Strong-Field-Driven Floquet States Revealed by Time- and Spectrum-Resolved Quantum-Path Interferometry
• Raman-phonon-polariton condensation in a transversely pumped cavity
• Low-Temperature Annihilation Rate for Quasi-Localized Excitons in Monolayer MoS2